diff --git a/lib/Target/PowerPC/PPCInstrFormats.td b/lib/Target/PowerPC/PPCInstrFormats.td
index 2b19bc6d1d9..4b211c4b7fd 100644
--- a/lib/Target/PowerPC/PPCInstrFormats.td
+++ b/lib/Target/PowerPC/PPCInstrFormats.td
@@ -498,7 +498,7 @@ class XFXForm_7_ext<bits<6> opcode, bits<10> xo, bits<10> spr,
   let SPR = spr;
 }
 
-// 1.7.10 XS-Form
+// 1.7.10 XS-Form - SRADI.
 class XSForm_1<bits<6> opcode, bits<9> xo, dag OL, string asmstr,
                InstrItinClass itin, list<dag> pattern>
          : I<opcode, OL, asmstr, itin> {
@@ -511,9 +511,9 @@ class XSForm_1<bits<6> opcode, bits<9> xo, dag OL, string asmstr,
 
   let Inst{6-10}  = RS;
   let Inst{11-15} = A;
-  let Inst{16-20} = SH{1-5};
+  let Inst{16-20} = SH{4,3,2,1,0};
   let Inst{21-29} = xo;
-  let Inst{30}    = SH{0};
+  let Inst{30}    = SH{5};
   let Inst{31}    = RC;
 }
 
@@ -618,8 +618,8 @@ class MDForm_1<bits<6> opcode, bits<3> xo, dag OL, string asmstr,
 
   let Inst{6-10}  = RS;
   let Inst{11-15} = RA;
-  let Inst{16-20} = { SH{4}, SH{3}, SH{2}, SH{1}, SH{0} };
-  let Inst{21-26} = { MBE{4}, MBE{3}, MBE{2}, MBE{1}, MBE{0}, MBE{5} };
+  let Inst{16-20} = SH{4,3,2,1,0};
+  let Inst{21-26} = MBE{4,3,2,1,0,5};
   let Inst{27-29} = xo;
   let Inst{30}    = SH{5};
   let Inst{31}    = RC;